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RHS 80×40×4 - Section Properties

The RHS 80×40×4 is a steel section with a mass of 6.97 kg/m, an overall depth of 80 mm and width of 40 mm and a wall thickness of 4 mm. It has a cross-sectional area of 8.79 cm², a second moment of area Iᵧ of 68.2 cm⁴, a plastic modulus Wₚₗ,ᵧ of 21.8 cm³, to EN 10219 · Continental Steel (SCI P363 Blue Book).

Mass
6.97 kg/m
Depth
80 mm
Width
40 mm
Wall thickness
4 mm
Area
8.79 cm²
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mass (kg/m)6.97
h (mm)80
b (mm)40
tw (mm)0
tf (mm)0
Iy (cm⁴)68.2
Iz (cm⁴)22.2
iy (cm)2.79
iz (cm)1.59
Wel,y (cm³)17.1
Wel,z (cm³)11.1
Wpl,y (cm³)21.8
Wpl,z (cm³)13.2
Iw (dm⁶)0
It (cm⁴)55.2
A (cm²)8.79
SA/m (m²/m)0.23

Related RHS sizes

RHS 60×40×6.3RHS 60×40×8RHS 80×40×3RHS 80×40×3.2RHS 80×40×5RHS 80×40×6RHS 80×40×6.3RHS 80×40×8

Learn more

📘 How to read a steel section table (UB, UC, IPE, HE)📘 Section modulus explained: elastic (Wel) vs plastic (Wpl)📘 SHS vs RHS vs CHS: choosing a hollow steel section
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